The existence of topological edge states in honeycomb plasmonic lattices
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Journal:
New Journal of Physics
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Abstract:
In this paper, we investigate the band properties of 2D honeycomb plasmonic lattices consisting of metallic nanoparticles. By means of the coupled dipole method and quasi-static approximation, we theoretically analyze the band structures stemming from near-field interaction of localized surface plasmon polaritons for both the infinite lattice and ribbons. Naturally, the interaction of point dipoles decouples into independent out-of-plane and in-plane polarizations. For the out-of-plane modes, both the bulk spectrum and the range of the momentum k∥ where edge states exist in ribbons are …
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Volume:
18
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Issue:
10
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Page Number:
103029
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Translation or Not:
no
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Date of Publication:
2016-10-19
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Links to published journals:
https://iopscience.iop.org/article/10.1088/1367-2630/18/10/103029/meta